JIS

Fasteners -- Thread run-outs for external thread in accordance with ISO general purpose metric screw threads (Foreign Standard)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2009

Designation system for fasteners (FOREIGN STANDARD)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2003

Hexalobular internal driving feature for bolts and screws
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2001

Tolerances for fasteners -- Part 1: Bolts, screws, studs and nuts -- Product grades A, B and C (FOREIGN STANDARD)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2003